After downgrading my nvidia driver the issue seems to be disappeared. (I don't really understand the interdependencies of the packages but I removed the nvidia-current package and installed nvidia-glx-173; I guess my driver will not be automatically updated.) I've been working with it for 3 hours and every window is ok; with the other driver the fourth opened maximized window was white.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/753144 Title: focused, or maximized windows blank To manage notifications about this bug go to: https://bugs.launchpad.net/hundredpapercuts/+bug/753144/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs